Take the following situation, a simple copy from image to buffer:

    ANGLE_TRY(contextVk->onBufferTransferWrite(buffer));
    ANGLE_TRY(contextVk->onImageTransferRead(aspectFlags, image));

    CommandBuffer &commandBuffer = contextVk->getOutsideRenderPassCommandBuffer();

    commandBuffer.copyImageToBuffer(imageHandle, layout, bufferHandle, 1, regions);

Both `onBufferTransferWrite` and `onImageTransferRead` may flush either
the outsideRP or insideRP command buffers.  If buffer is not previously
used, but image is used:

- onBufferTransferWrite: buffer usage is recorded in outsideRP1
- onImageTransferREad: outsiderRP1 is flushed, outsideRP2 is started
- copyImageToBuffer: recorded on outsideRP2, but buffer usage not
  recorded there
- A following command that uses the buffer and requires barrier doesn't
  close outsideRP2 as it believes it was not used there

Bug: angleproject:5319
Change-Id: Ib8994083fbc21969a538cda3784adee57b089415
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2523388
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>